FILE- In this June 13, 2021, file photo, Serbia's Novak Djokovic kisses the trophy after defeating Stefanos Tsitsipas, of Greece, 6-7 (6), 2-6, 6-3, 6-2, 6-4 in the final of the French Open tennis tournament at the Roland Garros stadium in Paris. Djokovic is 26-0 in Grand Slam matches in 2021, moving him two victories away from being the first man to win all four major tennis championships in one season since Rod Laver in 1969. (AP Photo/Christophe Ena, File)